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Common And Preferred Stock	12 Months Ended
	Dec. 31, 2011
Common And Preferred Stock [Abstract]
Common And Preferred Stock	9. Common and Preferred Stock On December 6, 2011, the Company announced that its Board of Directors increased the authorized level for repurchases of its common stock by approximately $50.0 million. The increased authorization will be added to the approximately $75.0 million that remains available from the existing authorization approved by the Board of Directors on April 21, 2008, resulting in a total authorized repurchase amount of $125.0 million. No shares were purchased in 2011 and 2010. At December 31, 2011 and 2010, the Company had 150 million shares of authorized common stock, with a par value of $.01 per share and 5 million shares of authorized preferred stock with a par value of $.01 per share. No preferred stock was issued as of December 31, 2011 and 2010.

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Common and Preferred Stock.

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